Hanna Instruments PH 210 Owner's manual

Instruction Manual

pH 210 pH 211

pH 212 pH 213

Microprocessor-based

Bench pH/mV/°C Meters

Manufacturers since 1978 These Instruments are in

Compliance with the CE Directives

http://www.hannainst.com

HANNA LITERATUREHANNA LITERATURE

HANNA LITERATURE

MANPH213R2 02/00

Hanna publishes a wide range of catalogs and

handbooks for an equally wide range of applications.

The reference literature currently covers areas such

as:

• Water Treatment

• Process

• Swimming Pools

• Agriculture

• Food

• Laboratory

• Thermometry

and many others. New reference material is constantly

being added to the library.

For these and other catalogs, handbooks and leaflets,

contact your dealer or the Hanna Customer Service

Center nearest to you. To find the Hanna Office in

your vicinity, check our home page at

www.hannainst.com.

Dear Customer,

Thank you for choosing a Hanna Product. Please read this instruction

manual carefully before using the instrument.

This manual will provide you with the necessary information for a

correct use of the instrument, as well as a precise idea of its versatil-

ity.

If you need more technical information, do not hesitate to e-mail us

at [email protected].

These instruments are in compliance with directives.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

PRELIMINARY EXAMINATION ...................................................... 3

GENERAL DESCRIPTION ............................................................. 3

FUNCTIONAL DESCRIPTION pH 210 AND pH 211 ....................... 4

SPECIFICATIONS pH 210 AND pH 211 ...................................... 5

FUNCTIONAL DESCRIPTION pH 212 AND pH 213 ....................... 6

SPECIFICATIONS pH 212 AND pH 213 ...................................... 7

OPERATIONAL GUIDE ................................................................ 8

pH CALIBRATION ................................................................... 11

TEMPERATURE CALIBRATION (pH 212 AND pH 213 ONLY) ........ 14

mV CALIBRATION (pH 213 ONLY) ........................................... 15

INTERFACE WITH PC (pH 212 AND pH 213 ONLY) .................... 16

pH VALUES AT VARIOUS TEMPERATURES ................................. 18

ELECTRODE CONDITIONING & MAINTENANCE ............................. 19

TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ..........22

TROUBLESHOOTING GUIDE ..................................................... 23

ACCESSORIES ......................................................................... 24

WARRANTY ............................................................................ 30

CE DECLARATION OF CONFORMITY ........................................... 31

CE DECLARATION OF CONFORMITY

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the environment in which it is

used.

Operation of this instrument in residential areas could cause unacceptable interferences to radio and

TV equipment, requiring the operator to take all necessary steps to correct interferences.

The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching

this glass bulb at all times.

During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by

electrostatic discharges.

Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC

performance.

To avoid electrical shock, do not use this instrument when voltages at the measurement surface

exceed 24VAC or 60VDC.

To avoid damages or burns, do not perform any measurement in microwave ovens.

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

The Hanna pH 210, pH 211, pH 212 and pH 213 are micropro-

cessor-based bench meters for pH and temperature measurements.

pH 211 and pH 213 can also measure ion concentration (ISE) and

ORP (Oxidation Reduction Potential) in the mV range.

The pH measurements are compensated for temperature effect manu-

ally or automatically with the HI 7669/2W temperature probe.

The meter comes equipped with a large easy-to-read LCD which shows

the pH (or mV) and temperature simultaneously together with graphic

symbols.

The calibration process is guided step by step through clear indications

on the LCD. A stability indicator make the calibration procedure error-

free.

Through the RS 232C serial port you can transfer the data to a PC

(pH 212 and pH 213 only).

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

Remove the instrument from the packing material and examine it

carefully to make sure that no damage has occurred during shipping.

If there is any damage, notify your Dealer or the nearest Hanna

Custumer Service Center.

Each meter comes supplied complete with:

•HI 1131B glass-body combination pH Electrode with 1 m

(3.3') cable

•HI 7669/2W Temperature Probe

•HI 76404 Electrode Holder

• pH 4.01 & 7.01 Buffer Solutions (20mL each)

•HI 7071S Electrolyte Solution

• 12VDC Power Adapter

• Instruction Manual

Note: Save all packing material until you are sure that the

instrument functions correctly. All defective item must be

returned in the original packing with the supplied accessories.

WARRANTYWARRANTY

WARRANTY

All Hanna Instruments meters are guaranteed for two years against

defects in workmanship and materials when used for their intended

purpose and maintained according to instructions. The electrodes

and the probes are guaranteed for a period of six months. This

warranty is limited to repair or replacement free of charge.

Damage due to accident, misuse, tampering or lack of prescribed

maintenance are not covered.

If service is required, contact the dealer from whom you purchased the

instrument. If under warranty, report the model number, date of

purchase, serial number and the nature of the failure. If the repair is

not covered by the warranty, you will be notified of the charges

incurred. If the instrument is to be returned to Hanna Instruments, first

obtain a Returned Goods Authorization number from the Customer

Service department and then send it with shipping costs prepaid.

When shipping any instrument, make sure it is properly packaged for

complete protection.

To validate your warranty, fill out and return the enclosed warranty

card within 14 days from the date of purchase.

All rights are reserved. Reproduction in whole or in part is prohibited

without the written consent of the copyright owner,

Hanna Instruments Inc., 584 Park East Drive, Woonsocket, Rhode

Island, 02895 , USA.

Hanna Instruments reserves the right to modify the design, con-

struction and appearance of its products without advance notice.

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

pHH

210 AND 210 AND

210 AND pp

pHH

211 211

211

1) Liquid Crystal Display (LCD)

2) CFM key, to confirm calibration values

3) CAL key, to enter or exit calibration mode

4) WC key, to manually decrease temperature or select pH buffer

5) VC key, to manually increase temperature or select pH buffer

6) MR key, to recall the stored value

7) MEM key, to store a value in memory

8) RANGE key, to select measurement range (pH 211 only)

9) ON/OFF switch

10) Power adapter socket

11) BNC electrode connector

12) Electrode reference socket

13) Temperature probe socket

14) RESET button

Extension cables for screw-type electrodes (screw to BNC

adapter)

HI 7855/1 Extension cable 1m (3.3') long

HI 7855/3 Extension cable 3m (9.9') long

OTHER ACCESSORIESTHER ACCESSORIES

THER ACCESSORIESTHER ACCESSORIES

THER ACCESSORIES

HI 710005 Voltage adapter from 115 VAC to 12 VDC (USA plug)

HI 710006 Voltage adapter from 230 VAC to 12 VDC (European

plug)

HI 710012 Voltage adapter from 240 VAC to 12 VDC (UK plug)

HI 710013 Voltage adapter from 230 VAC to 12 VDC (South

Africa plug)

HI 710014 Voltage adapter from 230 VAC to 12 VDC (Australia

plug)

ChecktempC Pocket-size thermometer (range -50.0 to 150.0C)

HI 76405 Electrode holder

HI 8427 pH and ORP electrode simulator with 1 m (3.3')

coaxial cable ending in female BNC connectors

HI 931001 pH and ORP electrode simulator with LCD and 1 m

(3.3') coaxial cable ending in female BNC connectors

HI 7669/2W Temp. probe with 1 m (3.3') cable

HI 92000 Windows® compatible software

HI 920010 9 to 9-pin RS232 cable

CONNECT TO

SCREW TYPE

ELECTRODES

CONNECT TO THE

BNC SOCKET

OF THE METER

HI 7855 SERIES CABLE CONNECTORS

CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC

Windows® is registered Trademark of "Microsoft Co."

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

pH 210 AND H 210 AND

H 210 AND H 210 AND

H 210 AND pp

pH 211H 211

H 211H 211

H 211

Range pH 0.00 to 14.00

mV ±399.9 (ISE, pH 211 only)

mV ±1999 (ORP, pH 211 only)

°C 0.0 to 100.0

Resolution pH 0.01

mV 0.1 (ISE, pH 211 only)

mV 1 (ORP, pH 211 only)

°C 0.1

Accuracy pH ±0.01

(@20°C/68°F) mV ±0.2 mV (ISE, pH 211 only)

mV ±1mV (ORP, pH 211 only)

°C ±0.5

Typical EMC pH ±0.03

Deviation mV ±2 mV (pH 211 only)

°C ±0.3

pH Calibration Automatic 1 or 2 points with 5 memorized buffers

(4.01, 6.86, 7.01, 9.18, 10.01)

Temperature Automatic or manual

Compensation from 0 to 100C (32 to 212F)

Electrode HI 1131B glass-body combination

refillable pH electrode (included)

Temperature probe HI 7669/2W (included)

Input impedance 1012 Ω

Power supply 12 VDC adapter (included)

Environment 0 to 50C (32 to 122F)

max. 95% RH non-condensing

Dimensions 240x182x74 mm (9.4x7.1x2.9")

Weight 1.1 kg (2.5 lb.); kit with holder: 2.5 kg (5.5 lb.)

Kynar® is registered Trademark of "Pennwalt Corp."

Ultem® is registered Trademark of "General Electrics Co."

HI 1413B

Glass-body, single junction, flat tip, Viscolene, non-refillable, combina-

tion pH electrode. Use: surface measurement.

ORP ELECTRODES

HI 3131B

Glass-body, refillable, combination platinum ORP electrode.

Use: titration.

HI 3230B

Plastic-body (Ultem®), gel-filled, combination platinum ORP elec-

trode. Use: general purpose.

HI 4430B

Plastic-body (Ultem®), gel-filled, combination gold ORP electrode.

Use: general purpose.

Consult the Hanna General Catalog for more electrodes with screw-

type or BNC connectors.

110 mm

4.3"

12 mm

0.5"

HI 1413

150 mm

5.9"

12 mm

0.5"

"S" VERSION

HI 3131

120 mm

4.7"

12 mm

0.5"

HI 3230

"S" VERSION

120 mm

4.7"

12 mm

0.5"

HI 4430

"S" VERSION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

pHH

212 AND212 AND

212 AND

pHH

213213

213

1) Liquid Crystal Display (LCD)

2) CFM key, to confirm calibration values

3) CAL key, to enter or exit calibration mode

4) WC key, to manually decrease temperature or select pH buffer

5) VC key, to manually increase temperature or select pH buffer

6) MR key, to recall the stored value

7) MEM key, to store a value in memory

8) COMM key, to set baud rate

9) RANGE key, to select measurement range

10) ON/OFF switch

11) Power adapter socket

12) BNC electrode connector

13) Electrode reference socket

14) Temperature probe socket

15) RESET button

16) RS232C socket

FC 100B

Plastic-body (Kynar®), double junction, refillable, combination pH

electrode. Use: general purpose for food industry.

FC 200B

Plastic-body (Kynar®), open junction, conic, Viscolene, non-refillable,

combination pH electrode. Use: meat & cheese.

FC 210B

Glass-body, double junction, conic, Viscolene, non-refillable, combina-

tion pH electrode. Use: milk, yogurt.

FC 220B

Glass-body, triple-ceramic, single junction, refillable, combination pH

electrode. Use: food processing.

FC 911B

Plastic-body (Kynar®), double junction, refillable with built-in ampli-

fier, combination pH electrode. Use: very high humidity.

120 mm

4.7"

12 mm

0.5"

FC 100

75 mm

2.95"

6 mm

0.25"

FC 200

120 mm

4.7"

12 mm

0.5"

FC 210

120 mm

4.7"

12 mm

0.5"

9.5mm DIA

0.37"

FC 220

110 mm

4.3"

12 mm

0.5"

FC 911

Range pH -2.00 to 16.00 / -2.000 to 16.000

mV ±999.9 (ISE and ORP, pH 213 only)

°C 0.0 to 100.0

Resolution pH 0.01 / 0.001

mV 0.1 (ISE and ORP, pH 213 only)

°C 0.1

Accuracy pH ±0.002 & ±0.01

(@20°C/68°F) mV ±0.05% f.s. (ISE and ORP, pH 213 only)

°C ±0.5

Typical EMC pH ±0.01

Deviation mV ±0.6 (pH 213 only)

°C ±0.5

pH Calibration Automatic 1 or 2 points with 5 memorized buffers

(4.01, 6.86, 7.01, 9.18, 10.01)

Temperature From 0 to 100C (32 to 212F) manual or

Compensation automatic with HI 7669/2W probe (included)

Electrode HI 1131B glass-body combination

refillable pH electrode (included)

Temperature probe HI 7669/2W (included)

Input impedance 1012 Ω

Computer Interface Opto-isolated RS232C

Power supply 12 VDC adapter (included)

Environment 0 to 50C (32 to 122F)

max. 95% RH non-condensing

Dimensions 240x182x74 mm (9.4x7.1x2.9")

Weight 1.1 kg (2.5 lb.); kit with holder: 3.0 kg (6.5 lb.)

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

pHH

212 AND 212 AND

212 AND pp

pHH

213213

213

HI 1330B

Glass-body, semimicro, single junction, refillable, combination pH

electrode. Use: laboratory, vials.

HI 1331B

Glass-body, semimicro, single junction, refillable, combination pH

electrode. Use: flasks.

HI 1230B

Plastic-body (Ultem®), double junction, gel-filled, combination pH

electrode. Use: general, field.

HI 2031B

Glass-body, semimicro, conic, refillable, combination pH electrode.

Use: semisolid products.

HI 1332B

Plastic-body (Ultem®), double junction, refillable, combination pH

electrode. Use: general purpose.

120 mm

4.7"

5mm

0.2"

5mm DIA

0.2"

"S" VERSION

HI 1330

120 mm

4.7"

12 mm

0.5"

VERSION

HI 1230

75 mm

6 mm

0.25"

VERSION

HI 2031

120 mm

4.7"

12 mm

0.5"

"S" VERSION

HI 1332

210 mm

8.25"

8 mm

0.3" 7.5mm DIA

0.29"

"S" VERSION

HI 1331

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

Power connection

Plug the 12VDC adapter into the power supply socket (#10 on page

4; #11 on page 6).

Note: pH 212 and pH 213 use an EEPROM to retain the pH, mV

and temperature calibrations as well as the serial communica-

tion setting. The instrument will retain the data after a

calibration or serial communication setting, even when it is

unplugged.

Note:Note:

Note: Make sure the main line is protected by a fuse.

Electrode and Probe connections

For combination pH or ORP electrodes (with internal reference)

connect the electrode's BNC to the socket on the back of the meter

(#11 on page 4; #12 on page 6).

For electrodes with a separate reference, connect the single cell

electrode's BNC to the BNC socket (#11 on page 4; #12 on page 6)

and the reference electrode plug to the reference socket (#12 on

page 4; #13 on page 6).

For temperature measurements and automatic temperature compen-

sation connect the temperature probe to the appropriate socket

(#13 on page 4; #14 on page 6).

Note: to prevent damage to the electrode, remove the pH electrode

from the solution before turning the meter off.

If the meter is OFF, detach the electrode from the meter before

immersing the electrode in the storage solution.

pH MEASUREMENTS

Make sure that the instrument has been calibrated before taking pH

measurements.

• Switch the instrument on by pressing the ON/OFF

switch.The meter automatically defaults to the pH mea-

surement mode.

• Submerge the tip (4cm/1½") of the elec-

trode and the temperature probe into the

sample to be tested. Allow time for the

electrode to stabilize.

4 cm

(1½")

ORP PRETREATMENT SOLUTIONS

HI 7091L Reducing Pretreatment Solution, 460 mL

HI 7092L Oxidizing Pretreatment Solution, 460 mL

pH ELECTRODES

All electrodes part numbers ending in B are supplied with a BNC

connector and 1 m (3.3') cable, as shown below :

HI 1043B

Glass-body, double junction, refillable, combination pH electrode. Use:

strong acid/alkali.

HI 1053B

Glass-body, triple ceramic, conic shape, refillable, combination pH

electrode. Use: emulsions.

HI 1083B

Glass-body, micro, Viscolene, non-refillable, combination pH electrode.

Use: biotechnology, micro titration.

HI 1131B

Glass-body, single junction, refillable, combination pH electrode.

Use: general purpose.

120 mm

4.7"

12 mm

0.5"

9.5mm DIA

0.37"

"S" VERSION

HI 1043

120 mm

4.7"

12 mm

0.5"

"S" VERSION

HI 1053

120 mm

4.7

12 mm

0.5" 5 mm

0.2" 3 mm

0.12" 3.0 mm DIA

0.12"

HI 1083

120 mm

4.7"

12 mm

0.5"

9.5mm DIA

0.37"

"S" VERSION

HI 1131

• pH is displayed on the primary display and temperature on the

secondary one.

• With pH 211 and pH 213 it is also possible to view the mV

reading by pressing the "RANGE" key.

If measurements are taken successively in different samples, it is

recommended to rinse the electrode thoroughly with deionized water

or, if not available, tap water first and then with some of the next

sample to condition the electrode before immersing it in the sample.

The pH reading is affected by temperature. In order for the meter to

measure the pH accurately, temperature must be taken into consid-

eration. To use the Automatic Temperature Compensation feature,

connect and submerge the HI 7669/2W temperature probe into the

sample as close to the electrode as possible and wait for a couple of

minutes.

If the temperature of the sample is known or tests are always

performed at the same temperature you can simply manually

compensate for it. For this purpose the temperature

probe must be disconnected.

The display will then show the default temperature

of 25C or the last recorded temperature reading

with the "C" symbol blinking.

Note the temperature of the sample using a

ChecktempC or an accurate reference thermometer.

The temperature can now be adjusted with the VC and WC keys.

ACCESSORIESACCESSORIES

ACCESSORIES

pH CALIBRATION SOLUTIONS

HI 70004P pH 4.01 Buffer Sachets, 20mL, 25 pcs

HI 70007P pH 7.01 Buffer Sachets, 20mL, 25 pcs

HI 70010P pH 10.01 Buffer Sachets, 20mL, 25 pcs

HI 7004L pH 4.01 Buffer Solution, 460 mL

HI 7006L pH 6.86 Buffer Solution, 460 mL

HI 7007L pH 7.01 Buffer Solution, 460 mL

HI 7009L pH 9.18 Buffer Solution, 460 mL

HI 7010L pH 10.01 Buffer Sol., 460 mL

HI 8004L pH 4.01 Buffer Solution in FDA approved bottle, 460 mL

HI 8006L pH 6.86 Buffer Solution in FDA approved bottle, 460 mL

HI 8007L pH 7.01 Buffer Solution in FDA approved bottle, 460 mL

HI 8009L pH 9.18 Buffer Solution in FDA approved bottle, 460 mL

HI 8010L pH 10.01 Buffer Solution in FDA approved bottle, 460 mL

ELECTRODE STORAGE SOLUTIONS

HI 70300L Storage Solution, 460 mL

HI 80300L Storage Solution in FDA approved bottle, 460 mL

ELECTRODE CLEANING SOLUTIONS

HI 70000P Electrode Rinse Sachets, 20 mL, 25 pcs

HI 7061L General Cleaning Sol., 460 mL

HI 7073L Protein Cleaning Sol., 460mL

HI 7074L Inorganic Cleaning Sol., 460mL

HI 7077L Oil & Fat Cleaning Sol.,460 mL

HI 8061L General Cleaning Solution in FDA approved bottle, 460 mL

HI 8073L Protein Cleaning Solution in FDA approved bottle, 230 mL

HI 8077L Oil & Fat Cleaning Solution in FDA approved bottle,460mL

REFILL ELECTROLYTE SOLUTIONS

HI 7071 3.5M KCl + AgCl Electrolyte, 4x50mL, for single junc-

tion electrodes

HI 7072 1M KNO3 Electrolyte, 4x50 mL

HI 7082 3.5M KCl Electrolyte, 4x50 mL, for double junction elec-

trodes

HI 8071 3.5M KCl + AgCl Electrolyte in FDA approved bottle,

4x50mL, for single junction electrodes

HI 8072 1M KNO3 Electrolyte in FDA approved bottle, 4x50 mL

HI 8082 3.5M KCl Electrolyte in FDA approved bottle, 4x50 mL, for

double junction electrodes

ORP MEASUREMENTS (pH211 and pH213 only)

An optional ORP electrode must be used to perform ORP measurements

(see accessories).

Oxidation-reduction potential (REDOX) measurements provide the quan-

tification of the oxidizing or reducing power of the sample tested.

To correctly perform a redox measurement, the surface of the ORP

electrode must be clean and smooth.

• Switch the meter on and press the "RANGE" key to

enter the mV mode.

• Submerge the ORP electrode tip (4cm/1½") into

the sample. Allow a few minutes for the reading

to stabilize.

• The meter displays the mV reading on the primary display.

• If readings are out of range, "---" will appear on the LCD.

TAKING TEMPERATURE MEASUREMENTS

Taking a temperature measurement is very easy.

Connect the HI 7669/2W temperature probe and

turn the instrument on. Dip the temperature probe

in the sample and allow the reading on the second-

ary display to stabilize.

HOLD FUNCTION

Press and hold MEM. The last reading will be frozen on the display

until MEM is released. During this operation, the MEM indicator is also

shown on the LCD.

Press MR and the previously memorized reading will be

displayed with the MEM indicator on the LCD.

4 cm

(1½")

TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE

Symptoms Problem Solution

The meter is slow in

responding or gives

faulty readings

The meter does not ac-

cept the 2nd buffer

solution for calibration

The reading drifts

Display shows:

"WRONG 1 "

and

"WRONG "

Display shows:

"WRONG 2

and

"WRONG "

The meter does not

work with the tempera-

ture probe

The meter fails to cali-

brate or gives faulty

readings

The electrode is not work-

ing or the reference

junction is clogged

Out of order pH electrode

Defective pH electrode

Out of range pH scale

Out of range tempera-

ture scale

Out of range mV scale

Erroneous buffer solution

used for offset calibra-

tion

Defective electrode

Erroneous buffer solution

used for slope calibration

Defective electrode

Out of order temperature

probe

Out of order pH electrode

Leave the electrode in a stor-

age solution after cleaning

the junction. If problem per-

sists, replace the electrode

Follow the cleaning proce-

dure. If this doesn't work

replace the electrode

Replace the electrode

a) Recalibrate

b) Make sure the pH sample

is in the specified range

c) Check the electrolyte level

and the general state of

the pH electrode

Make sure the temperature

is in the 0 to 100C range

and the temperature probe is

plugged in

Electrode not connected

Make sure the buffer setting

is correct and the solution is

fresh. Replace the buffer if

necessary

Replace the electrode

Make sure the buffer setting

is correct and the solution is

fresh. Replace the buffer if

necessary

Replace the electrode

Replace the probe

Replace the electrode

pH CALIBRATIONH CALIBRATION

H CALIBRATIONH CALIBRATION

H CALIBRATION

Calibrate the instrument often, especially if high accuracy is required.

The instrument should be recalibrated :

a) Whenever the pH electrode is replaced.

b) At least once a week.

c) After testing aggressive chemicals.

d) After pressing RESET.

e) If higher accuracy is required.

PREPARATION

Pour small quantities of the buffer solutions into clean beakers. If

possible use plastic beakers to minimize any EMC interferences.

For accurate calibration and to minimize cross contamination, use two

beakers for each buffer solution. One for

rinsing the electrode and the second for

calibration.

If you are measuring in the acid range,

use pH 4.01 as second buffer; if you are measuring in the alkaline

range, use pH 10.01 or pH 9.18 as second buffer.

PROCEDURE

Calibration has a choice of 5 memorized buffers: pH 4.01, 6.86,

7.01, 9.18 and 10.01.

It is always recommended to perform a two-point calibration. The pH

meters however also provide for one-point calibration, as described

below.

HI 7007

HI 7004

HI 7007

CALIBRATION

HI 7007

RINSE

RESET

The RESET button (#14 on page 4;#15 on page 6) should only be

used when the instrument displays erroneous messages due to strong

electrical interference or when the instrument's power supply was

disconnected before the meter was switched off.

After pressing RESET always recalibrate the unit before proceeding.

Alkaline Error

1.0 Mol L-1 Na+

0.1 Mol L-1 Na+

Sodium Ion Correction for the Glass at 20-25°C

Concentration pH Error

13.00

13.50

14.00

12.50

13.00

13.50

14.00

0.10

0.14

0.20

0.10

0.18

0.29

0.40

TEMPERATURE CORRELATION FOR TEMPERATURE CORRELATION FOR

TEMPERATURE CORRELATION FOR pp

pHH

SENSITIVE GLASSSENSITIVE GLASS

SENSITIVE GLASS

The resistance of glass electrodes partially depends on the temperature.

The lower the temperature, the higher the resistance. It takes longer time

for the reading to stabilize if the resistance is higher. In addition, the

response time will suffer to a greater degree at temperatures below 10C.

Since the resistance of the pH electrode is in the range of 200 Mohm,

the current across the membrane is in the pico Ampere range. Large

currents can disturb the calibration of the electrode for many hours.

For these reasons high humidity environments, short circuits and

static discharges are detrimental to a stable pH reading.

The pH electrode's life also depends on the temperature. If constantly

used at high temperatures, the electrode life is drastically reduced.

Typical Electrode Life

Ambient Temperature 1- 3 years

90 °C Less than 4 months

120°C Less than 1 month

High concentrations of sodium ions interfere with readings in alkaline

solutions; the pH at which the interference starts to be significant

depends upon the composition of the glass. This interference is the

alkaline error and causes the pH to be underestimated. Hanna's glass

formulations have the indicated characteristics.

-10

0 +10+20+30+40+50+60+70+80+90

-10

Ω

-10

Ω

2x109

1x109

2x108

1x108

2x107

1x107

-20 -10 0 +10 +20+30+40 +50 +60 +70 +80 +90 C

One-point calibration

••••• Immerse the pH electrode and the tem-

perature probe approximately 4 cm (1½")

into a buffer solution of your choice (pH

4.01, 6.86, 7.01, 9.18 or 10.01) and

stir gently. The temperature probe should

be close to the pH electrode.

• Press CAL. The "CAL" and " " indicators and the most common

"7.01" buffer will be displayed on the secondary LCD.

• If necessary, press "VC" or "WC" to

select a different buffer value.

• The "NOT READY" indication will blink on LCD until

the reading has stabilized.

• When the reading is stable, "READY" and "CFM" will blink. Press CFM

to confirm the calibration.

• If the reading is close to the selected buffer, the meter stores the

reading. The calibrated value is then displayed on the primary LCD

and the secondary LCD will display the second expected buffer value.

• If the value measured by the meter is not

close to the selected buffer, "WRONG " and

"WRONG " will blink alternately. In this case

check if the correct buffer has been used or

refresh the electrode by following the maintenance procedure below.

If necessary change the buffer or the electrode.

• Press CAL to quit calibration. The meter will return to

normal operation and memorize the one-point calibra-

tion data.

4 cm

(1½")

CLEANING PROCEDURE

General Soak in Hanna HI 7061 or HI 8061 General Cleaning

Solution for approximately ½ hour.

Removal of films, dirt or deposits on the membrane/junction:

Protein

Soak in Hanna HI 7073 or HI 8073 Protein Cleaning

Solution for 15 minutes.

Inorganic

Soak in Hanna HI 7074 or HI 8074 Inorganic Clean-

ing Solution for 15 minutes.

Oil/grease

Rinse with Hanna HI 7077 or HI 8077 Oil and Fat

Cleaning Solution.

IMPORTANT: After performing any of the cleaning procedures rinse

the electrode thoroughly with distilled water, refill the reference

chamber with fresh electrolyte (not necessary for gel-filled electrodes)

and soak the electrode in HI 70300 or HI 80300 Storage Solution

for at least 1 hour before taking measurements.

TROUBLESHOOTING

Evaluate your electrode performance based on the following.

•Noise (Readings fluctuate up and down) could be due to:

– Clogged/Dirty Junction: Refer to the Cleaning Procedure above.

– Loss of shielding due to low electrolyte level (in refillable

electrodes only): refill with fresh HI 7071 or HI 8071 for

single junction or HI 7082 or HI 8082 for double junction

electrodes.

•Dry Membrane/Junction: Soak in HI 70300 or HI 80300 Stor-

age Solution for at least 1 hour.

•Drifting: Soak the electrode tip in warm (approx. 50-60C) Hanna

HI 7082 or HI 8082 Solutions for one hour and rinse the tip

with distilled water. Refill with fresh HI 7071 or HI 8071 for

single junction electrodes and HI 7082 or HI 8082 for double

junction electrodes (refillable electrodes only).

•Low Slope: Refer to the cleaning procedure above.

•No Slope: Check the electrode for cracks in glass stem or bulb

and replace the electrode.

•Slow Response/Excessive Drift: Soak the tip in HI 7061 or

HI 8061 Solutions for 30 minutes, rinse thoroughly in distilled

water and then follow the Cleaning Procedure above.

Two-point calibration

Any two of the 5 memorized buffers can be used for this purpose.

However, it is recommended that pH 6.86 or 7.01 is chosen as the

first point and pH 4.01 (acidic) or pH 9.18/10.01 (alkaline) as the

second point.

• Proceed as described in “One-point calibration” above but do not

quit calibration by pressing CAL at the end.

••••• After the first calibration point is con-

firmed, immerse the pH electrode and the

temperature probe approximately 4 cm

(1½") in the second buffer solution and

stir gently. The temperature probe should

be close to the pH electrode.

• If necessary, press "VC" or "WC" to

select a different buffer value.

Note: The meter will automatically skip the buffer used for the first

point. It also skips 6.86 if 7.01 was used, and viceversa.

Likewise, it will skip 9.18 if 10.01 was used, and viceversa.

• The "NOT READY" indication will blink on LCD until

the reading has stabilized.

• When the reading is stable, "READY" and "CFM" will blink. Press

CFM to confirm the calibration.

• If the reading is close to the selected buffer, the meter stores the

reading and returns to normal operational mode.

• If the value measured by the meter is not

close to the selected buffer, "WRONG " and

"WRONG " will blink alternately. In this case

check if the correct buffer has been used, or regenarate the

electrode by following the cleaning procedure below. If necessary

change the buffer or the electrode.

Note: Press RANGE to display the temperature reading

on the LCD during calibration (pH211, pH212,

pH213 only).

4 cm

(1½")

For refillable electrodes:

If the filling solution (electrolyte) is more than 2½ cm (1") below the

fill hole, add HI 7082 or HI 8082 3.5M KCl Electrolyte Solution for

double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte

Solution for single junction electrodes.

For a faster response, unscrew the fill hole screw during measure-

ments.

For AmpHel®

electrodes:

If the electrode does not respond to pH changes, the battery is run

down and the electrode should be replaced.

MEASUREMENT

Rinse the electrode tip with distilled water. Immerse the tip (bottom 4

cm /1½") in the sample and stir gently for a few seconds.

For a faster response and to avoid cross contamination of the samples,

rinse the electrode tip with a few drops of the solution to be tested,

before taking measurements.

STORAGE

To minimize clogging and assure a quick response time, the glass bulb

and the junction should be kept moist and not allowed to dry out.

Replace the solution in the protective cap with a few drops of HI 70300

or HI 80300 Storage Solution or, in its absence, Filling Solution

(HI 7071 or HI 8071 for single junction or HI 7082 or HI 8082 for

double junction electrodes). Follow the Preparation Procedure above

before taking measurements.

Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER.

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for connection to

the meter must be intact and there must be no points of broken

insulation on the cable or cracks on the electrode stem or bulb.

Connectors must be perfectly clean and dry. If any scratches or cracks

are present, replace the electrode. Rinse off any salt deposits with

water.

For refillable electrodes:

Refill the reference chamber with fresh electrolyte (HI 7071 or HI 8071

for single junction or HI 7082 or HI 8082 for double junction elec-

trodes). Allow the electrode to stand upright for 1 hour.

Follow the Storage Procedure above.

AmpHel® is a registered Trademark of "Hanna Instruments"

TEMPERATURE CALIBRATIONTEMPERATURE CALIBRATION

TEMPERATURE CALIBRATION

pH 212 AND H 212 AND

H 212 AND H 212 AND

H 212 AND pp

pH 213 ONLYH 213 ONLY

H 213 ONLYH 213 ONLY

H 213 ONLY

(for technical personnel only)

0 °C

(32 °F)

°C

50 ºC

(122 ºF)

°C

0 °C

(32 °F)

°C

50 °C

(122 °F)

°C

All the meters are factory calibrated for temperature.

The temperature probes are interchangeable and no temperature

calibration is needed when they are replaced.

If, for any reason, the temperature measurements are inaccurate,

temperature recalibration may be carried out.

For an accurate recalibration, contact your dealer or the nearest

Hanna Customer Service Center.

• Prepare a vessel containing ice and water and another one

containing hot water (at a temperature of around 50C). Place

insulation material around the vessels to minimize temperature

changes.

• Use a ChecktempC or a calibrated ther-

mometer with a resolution of 0.1C as a

reference thermometer.

• With the instrument off, press and hold CAL and then the ON

switch. The "CAL" indicator will come on and the secondary LCD

will show 0.0C.

• Immerse the temperature probe in the vessel with

the ice and water as near to the ChecktempC as

possible. Allow a couple of minutes for the probe to

stabilize.

• Use the "VC" or "WC" key to set the

reading on the secondary LCD to that of

ice and water, measured by checktempC

(for example, 0.1 ºC).

• Press CFM to confirm. The secondary LCD will show

50.0C.

• Immerse the temperature probe in the second

vessel as near to the ChecktempC as possible.

ELECTRODE CONDITIONING &ELECTRODE CONDITIONING &

ELECTRODE CONDITIONING &

MAINTENANCEMAINTENANCE

MAINTENANCE

PREPARATION

Remove the protective cap.

DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal

with electrodes and they will disappear when rinsed with water.

During transport tiny bubbles of air may form inside the glass bulb

affecting proper functioning of the electrode. These bubbles can be

removed by "shaking down" the electrode as you would do with a

glass thermometer.

If the bulb and/or junction is dry, soak the electrode in HI 70300 or

HI 80300 Storage Solution for at least one hour.

Note: To prevent damage to the electrode, remove the pH electrode

from the solution before turning the meter off.

If the meter is OFF, detach the electrode from the meter before

immersing the electrode in the storage solution.

Allow a couple of minutes for the probe

to stabilize.

• Use the "VC" or "WC" key to set the

reading on the secondary LCD to that of the hot

water

• Press CFM to confirm. The meter returns to normal

operational mode.

mV CALIBRATIONV CALIBRATION

V CALIBRATIONV CALIBRATION

V CALIBRATION

pH 213 ONLYH 213 ONLY

H 213 ONLYH 213 ONLY

H 213 ONLY

(for technical personnel only)

All the meters are factory calibrated for mV.

The ORP electrodes are interchangeable and no mV calibration is

needed when they are replaced.

If, for any reason, the mV measurements are inaccurate, mV

recalibration may be carried out.

For an accurate recalibration, contact your dealer or the nearest

Hanna Customer Service Center.

• Attach to the electrode BNC connector a mV simulator with a

range of at least ±500.0 mV and an accuracy of ±0.1 mV.

• With the instrument off, press and hold CFM and then the ON

switch. The "CAL" indicator will come on and the primary LCD will

show 380.0 mV.

• Set 380.0 mV on the simulator.

• Wait for 3 sec. and press CFM. The LCD will display -380.0 mV

asking for this value to be set.

• Set -380.0 mV on the simulator.

• Wait for 3 sec. and press CFM. The LCD will display 500.0 mV.

• Set 500.0 mV on the simulator.

• Wait for 3 sec. and press CFM. The LCD will display -500.0 mV.

• Set -500.0 mV on the simulator.

• Wait for 3 sec. and press CFM.

• The secondary LCD will display 0.0C. It is now possible

to proceed with the temperature calibration, if neces-

sary, as described above, or return to normal operation

by pressing CAL.

pH VALUES AT VARIOUSH VALUES AT VARIOUS

H VALUES AT VARIOUSH VALUES AT VARIOUS

H VALUES AT VARIOUS

TEMPERATURESTEMPERATURES

TEMPERATURES

TEMP pH VALUES

°C °F 4.01 6.86 7.01 9.18 10.01

104

113

122

131

140

149

158

4.01

4.00

4.01

4.02

4.03

4.04

4.05

4.06

4.07

4.09

4.11

4.12

6.98

6.95

6.92

6.90

6.88

6.86

6.85

6.84

6.83

6.84

6.85

7.13

7.10

7.07

7.04

7.03

7.01

7.00

6.99

6.98

6.99

9.46

9.39

9.33

9.27

9.22

9.18

9.14

9.10

9.07

9.04

9.01

8.99

8.97

8.95

8.93

10.32

10.24

10.18

10.12

10.06

10.01

9.96

9.92

9.88

9.85

9.82

9.79

9.77

9.76

9.75

Temperature has an effect on pH. The calibration buffer solutions are

affected by temperature changes to a lesser degree than normal

solutions. During calibration the meter will automatically calibrate to

the pH value corresponding to the measured or set temperature.

For instance, if the buffer temperature is 25C, the display will show

pH 4.01 or 7.01 or 10.01. If the buffer temperature is 20C, it will

show pH 4.00/7.03/10.06 or at 50C, the display will show pH 4.06/

6.98/9.82.

Data transmission from the instrument to the PC is now much easier

with the new HI 92000 Windows® compatible application software

(optional). HI 92000 also offers an on-line help feature.

Simply run your desired spread sheet and open the file downloaded

by HI 92000. Data can be further elaborated with graphics, statis-

tical analysis, etc. using the most diffused spread sheet programs

To install HI 92000 you need a 3.5" drive and a few minutes to

follow the instructions printed on the disk label.

To connect your meter to the PC use the optional Hanna HI 920010

cable connector. Make sure that your meter is switched off and plug

the connectors, one into the meter RS232C socket and the other into

the serial port of your PC.

Note: Cables other than HI 920010 may use a different configura-

tion, in which case, communication between the meter and

the PC may not be possible.

If you are not using Hanna Instruments HI 92000 application

software, please find below some additional information to help you

link-up to your PC.

Setting the Baud Rate and the Command Prefix

The baud rate of the meter and of the external device must be the

same. To set the baud rate of the meter press COMM, the primary

LCD shows the current baud rate.

The following baud rates can be selected

with the "VC" or "WC" key: 150, 300,

600, 1200 (factory setting) and 2400.

Press CFM to confirm the setting. The primary LCD will show the

current command prefix (factory setting is 16).

Note: The Command Prefix must not be changed when using

Hanna HI 92000 Software.

INTERFACE WITH INTERFACE WITH

INTERFACE WITH PCPC

PCPC

(p(p

(pH 212 AND H 212 AND

H 212 AND H 212 AND

H 212 AND pp

pH 213 ONLY)H 213 ONLY)

H 213 ONLY)H 213 ONLY)

H 213 ONLY)

Windows® is registered Trademark of "Microsoft Co."

Select, if necessary, a different command

prefix (between 0 and 47) by pressing the

"VC" or "WC" key.

Press CFM to confirm the setting.

Sending Commands from PC

With any terminal program it is possible to remotely control your

meter. Use HI 920010 cable to connect the meter to a PC, start the

terminal program and set the communication options as follows: 8, N,

1, no flow control.

Command Types

To send a command to the pH meter the scheme is:

<DLE> <

command>

<CR>

This line makes the computer send a Data Link Escape character, the

command expressed as a 3-character sequence and a CR character.

Note: All the terminal programs that support the ANSI escape se-

quence, represent the DLE character by the string '^P' and

the CR character by the string '^M'.

Commands not requiring an answer from the pH meter:

PHR sets the range to pH

MVR sets the range to mV (pH 213 only)

CAL is equivalent to pressing the CAL key

CFM is equivalent to pressing the CFM key

UPC is equivalent to pressing the VC key

DWC is equivalent to pressing the WC key

MEM is equivalent to pressing the MEM key

MRR is equivalent to pressing the MR key

COM is equivalent to pressing the COMM key

OFF sets the meter in standby mode

Commands requiring an answer:

pH? Causes the meter to send the pH reading ("Err 1" is sent if

out of range). If the range is set to mV, "Err 6" is sent.

MV? Causes the meter to send the mV reading ("Err 2" is sent if

out of range). If the range is set to pH, "Err 6" is sent.

TM? Causes the meter to send the temperature reading ("Err 3" is

sent if out of range).

These commands may be sent with either capital or small letters.

Invalid commands will be ignored. The characters sent by the meter

are always capital letters. When the meter receives an unknown or a

corrupted command, it will send a character CAN (ASCII Code 24).

Hanna Instruments PH 210 Owner's manual

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